Economics Professor, Department of Health Policy and Management, Columbia University
Pacific Economic Cooperation Chair in International Economic Relations, School of Global Policy and Strategy, UC San Diego
Member of the Institute for Economic Analysis; Barcelona GSE Research Professor (Emeritus).
Professor, Harris School of Public Policy, University of Chicago
Professor, Department of Economics, University of Namur
Professor Emeritus of Economics, University of Namur
Frederick W. Beinecke Professor of Economics, Yale University
Assistant Professor of Economics, University of California, Berkeley
Assistant Professor of Economics, MIT
Assistant Professor, Vancouver School of Economics, University of British Columbia